Apparatus includes a production tooling having a dispensing surface with a plurality of cavities and formed into an endless belt. An abrasive particle feeder dispenses shaped abrasive particles onto the dispensing surface and into the plurality of cavities. A resin coated backing receives shaped abrasive particles from the cavities of the production tooling at a deposit point. A detecting device detects a pattern transition zone as the production tooling moves in the direction of travel and provides pattern transition zone detection data to one or more controllers to control a speed of the production tooling and/or a speed of the resin coated backing as the detected pattern transition zone passes the deposit point to change a pattern density of the shaped abrasive particles in a portion of the resin coated backing corresponding to the pattern transition zone of the production tooling.

The present disclosure provides systems, devices, and methods for abrasive articles and manufacturing the same. An abrasive article can include a substrate shaped particles disposed on the substrate, wherein the shaped particles include first shaped abrasive particles and second shaped particles, and wherein a characteristic of the first shaped abrasive particles is different from a corresponding characteristic of the second shaped particles, and at least one binding agent securing the shaped particles to the substrate.

The present disclosure provides systems, devices, and methods for abrasive articles and manufacturing the same. A shaped abrasive particle placement tool can include a substrate including an abrasive particle receiving surface defining an x-y plane including an x-axis and a y-axis and a back surface opposite the abrasive particle receiving surface, cavities formed in the substrate, the cavities including one or more sidewalls, the cavities including a width and length at the abrasive article receiving surface, and a depth defined by a distance the first cavities extend from the abrasive article receiving surface towards the back surface in a direction parallel to a z-axis perpendicular to the x-y plane, and respective protrusions between two or more proximate cavities, the respective protrusions extending from the abrasive article receiving surface in a direction parallel to the z-axis and away from the back surface, and shaped abrasive particles situated in the cavities.

Abrasive articles and associated methods are shown that include abrasive particles arranged in one or more symbols on a backing substrate. Examples include shaped abrasive particles arranged into one or more symbols. Other examples include one or more wear particles with a height less than other abrasive particles, such that when exposed, the wear particles indicate a wear condition of the abrasive article.

A system and method for producing an abrasive article includes a production tool configured to provide shaped abrasive particles to a resin coated backing. A first end and a second end of the production tool are spliced together to form a spliced area. The production tool includes a dispensing surface that includes a plurality of cavities formed between the first end and the second end and configured to receive and hold the shaped abrasive particles. The resin coated backing is configured to receive the shaped abrasive particles from the dispensing surface of the production tool and configured to receive further shaped abrasive particles to fill gaps in the shaped abrasive particles caused by an absence of the plurality of cavities in the spliced area.

Methods of making abrasive articles involve adhering shaped abrasive particles to a reinforcing member according to a predetermined pattern and optionally orientation, and depositing a space-filling binder precursor on the reinforcing member and shaped abrasive particles to provide a filled abrasive preform, disposing another reinforcing member onto the filled abrasive preform, and curing the abrasive article precursor to form the abrasive articles. In some aspects, multiple abrasive preforms are stacked on each other. Bonded abrasive wheels preparable according to the methods are also disclosed.

According to one embodiment, a method of making an abrasive article is disclosed. The method can comprise: disposing a layer of a curable composition into a mold having a circular mold cavity with a central hub, wherein the circular mold cavity has an outer circumference and a rotational axis extending through the central hub, and wherein the curable composition is comprised of at least some magnetizable abrasive particles dispersed therein; and varying a magnetic field relative to the curable composition such that a majority of the magnetizable abrasive particles are at least one of oriented and aligned in a non-random manner relative to a surface of the mold; and at least partially curing the curable composition to provide the bonded abrasive article.

A polishing nanofiber aggregate and a method for producing the same are provided that are capable of suppressing a decrease in polishing efficiency even using fine powder for precision polishing. A polishing nanofiber aggregate 1 is used by adsorbing a slurry prepared by mixing fine powder for precision polishing with a liquid. The polishing nanofiber aggregate 1 has an average fiber diameter d of 400 nm or more and 1000 nm or less and a porosity η of 0.70 or more and 0.95 or less. The polishing nanofiber aggregate 1 is capable of reducing an interfiber distance e.sub.1 while securing the porosity η. It is thus possible to suppress incorporation of abrasive particles having a small diameter between the fibers.

The disclosure relates to a method for producing an abrasive article, in which method a granular substance is scattered onto an abrasive article substrate that is coated with a binder, wherein the granular substance is deagglomerated by gas pulses and the deagglomerated granular substance is scattered onto the abrasive article substrate. The disclosure further relates to a correspondingly produced abrasive article.

The present disclosure relates to an abrasive article. The abrasive article (10) includes a non-woven web (12). The non-woven web (12) includes a fiber or filament component (18). The non-woven web (12) further includes a first major surface (14) and a second major surface (16). A thickness of the non-woven web (12) is defined from the first major surface (14) to the second major surface (16). The abrasive article further includes a plurality of shaped abrasive particles (22) dispersed through at least a portion of the non-woven web (12). The abrasive article further includes a heat-activated water-forming inorganic component dispersed through the non-woven web (12).